Botryoidal Hematite (included in Quartz/Limonite matrix)
Fe2O3 (Hematite) on Quartz (SiO2) / Limonite
mineral
Category
Mineral, Specifically An Iron Ore
Browse mineral, specifically an iron ore specimens identified by the Rock Identifier community.
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Pyrite
Iron Pyrite (FeS2)
mineral
Carnelian
SiO2 (Silicon Dioxide) - Translucent reddish-brown variety of Chalcedony
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Stainless Steel Spoon
Iron-Chromium Alloy (Fe + Cr + Ni)
mineral-based human-made alloy
Pyrite
Iron Sulfide (FeS2)
mineral
Basalt
Basalt (composition predominately plagioclase feldspar and pyroxene)
igneous
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Magnetite (likely with weathered Limonite/Hematite)
Magnetite (Fe3O4) with iron oxide weathering
mineral
Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)
Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)
sedimentary
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Ferruginous Quartzite (also known as Ironstone or Gossan)
Ferruginous Quartzite with Goethite/Hematite staining
metamorphic
Rose Quartz
Silicon dioxide with traces of titanium, iron, or manganese (SiO2)
mineral
Botryoidal Hematite (Kidney Ore)
Hematite (Fe2O3)
Mineral
Green Sandstone
Glauconitic Sandstone
sedimentary
Quartz with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Sandstone Pebble with Iron Staining
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)
sedimentary
Nobby Hematite (Iron Ore)
Hematite (Fe2O3)
mineral
Bornite (Peacock Ore)
Bornite (Copper iron sulfide - Cu5FeS4)
mineral
Mahogany Obsidian
Obsidian (Volcanic Glass with Hematite/Magnetite inclusions), SiO2
igneous
Bauxite
Al2O3·2H2O (principally composed of gibbsite, boehmite, and diaspore)
sedimentary
Blue Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Gossan (Iron Hat) with Quartz and Chlorite
Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite
Mineral/Metamorphic Substrate
Basalt
Basalt (composition of plagioclase feldspar and pyroxene)
Igneous
Limonite (Iron Ore/Sandstone mixture)
Limonite (FeO(OH)·nH2O) often mixed with Goethite and sedimentary matrix
mineral
Ironstone Concretion (Limonite/Goethite)
Ironstone (primarily FeO(OH)·nH2O)
sedimentary
Moqui Marble (Moqui Ball)
Ironstone Concretion (Goethite/Hematite cemented Sandstone)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Bauxite
Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Chrysocolla on Limonite Matrix
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla) on FeO(OH)·nH2O (Limonite)
mineral
Ferruginous Breccia
Breccia with Iron-rich (Hematite/Goethite) Matrix
sedimentary
Dragon Stone (Dragon Blood Jasper)
Epidote with Pietersite or Red Jasper inclusions (varied SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic